body {
  min-width: 320px;
  max-width: 540px;
  margin: 0 auto;
  background-color: #fff;
  font-size: 0.373333rem;
  color: #666;
  line-height: 1.5;
  font-family: -apple-system, Helvetica, sans-serif;
}
/*点击高亮我们需要清除清除 设置为transparent 完成透明*/
* {
  -webkit-tap-highlight-color: transparent;
}
/*在移动端浏览器默认的外观在iOS上加上这个属性才能给按钮和输入框自定义样式*/
input {
  -webkit-appearance: none;
}
/*禁用长按页面时的弹出菜单*/
img,
a {
  -webkit-touch-callout: none;
}
button,
dd,
dl,
dt,
fieldset,
form,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
input,
legend,
li,
ol,
p,
pre,
td,
textarea,
th,
ul,
img {
  margin: 0;
  padding: 0;
}
ul,
ol {
  list-style: none;
}
a {
  text-decoration: none;
}
@media screen and (min-width: 540px) {
  html {
    font-size: 54px!important;
  }
}
